Welcome to the Dos Palos State Preschool. The Preschool offers learning experiences for you and your child through classroom activities, parent involvement, health, nutrition and social services. Parents are as important as their children at the Preschool. Parents help by participating at the Preschool, enjoying special parent activities and helping to make decisions about the Preschool Program. The Dos Palos Oro Loma Unified School District is located in Dos Palos, CA. The district serves a population base of approximately 5,000. The mild climate supports a flourishing agricultural economy of dairy, cotton, rice, sugar beets, tomatoes, and other leading commodities.